【C5】A．should notB．mustC．might notD．could

You ______ be too careful when you drive a car in the rush hour.A．might notB．must notC．can

Since the weather is fine we ______walk for a while.A．mayB．mustC．might as wellD．will

I cant put up with______telling me about it.A．his notB．not hisC．its notD．not him

A．did notB．does notC．may notD．will not

A. would B. should C. might D. could

_________(59)A.have to B.mustC.should D.need